html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: Arial, sans-serif;
}

#app {
  display: flex;
  height: 100vh;
}

#sidebar {
  width: 320px;
  background: #f7f7f7;
  padding: 20px;
  box-sizing: border-box;
  overflow-y: auto;
  border-right: 1px solid #ddd;
}

#sidebar h1 {
  font-size: 24px;
  margin-top: 0;
}

.section {
  margin-top: 24px;
}

#map {
  flex: 1;
  height: 100vh;
}

.btn {
  display: inline-block;
  padding: 10px 14px;
  background: #1f5f3b;
  color: white;
  text-decoration: none;
  border-radius: 6px;
}